Slight paper loss LR. Back has old glue marks, paper loss and some age spots.
8.25 X 11.25 cm
The third Paris World's Fair, called an Exposition Universelle in French, was held from 1 May through to 10 November 1878. It celebrated the recovery of France after the 1870–71 Franco-Prussian War.
Among the many inventions on display was Alexander Graham Bell's telephone. Electric arc lighting had been installed all along the Avenue de l'Opera and the Place de l'Opera, and in June, a switch was thrown and the area was lit by electric Yablochkov arc lamps, powered by Zénobe Gramme dynamos. Thomas Edison had on display a megaphone and phonograph. International juries judged the various exhibits, awarding medals of gold, silver and bronze. One popular feature was a human zoo, called a "negro village", composed of 400 "indigenous people". And Augustin Mouchot's Solar powered engine converting solar energy into mechanical steam power, he won a Gold Medal in Class 54 for his works, most notably the production of ice using concentrated solar heat.